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Abbreviations and acronyms are allowed in a preferred term or synonym when followed by the term expansion. If the abbreviation or acronym stands alone (meaning, no additional terms are included; the letters represent the entire meaning of the description without any other text), it is followed by a space, a hyphen, and another space, then the expanded term.  The The first word after the dash should be lower case as hyphen should be lower case as per usual capitalization rules.

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• Where an infection caused by a microorganism has a common name, the common name of the disease can be used in the preferred term if accompanied by the explicitly-stated organism. 
• If a common name is shared between more than one organism, the organism preferred organism preferred term may include the scientific name with annotated common name. Generally, a dash is a hyphen is used to separate the two names. However, if the organism name falls in the middle of the term,  parentheses parentheses should be used to separate the separate the two names.
• When defining concepts in other hierarchies by referring to an organism, the taxonomical rank of the organism should not be included in the FSN or synonyms.
  • For example, 
    • Instead of |Gingivitis caused by Genus Candida (disorder)|, drop the taxonomical rank of Genus, as in |Gingivitis caused by Candida (disorder)|.
• There are instances where the requested term for a concept containing an organism common name doesn’t correspond to specific taxa. Rather, the term is found as part of common names in multiple taxa belonging to a higher level taxon. For example, “parakeet” and “parrot” are not common names to any specific taxa, but are found as part of common names in multiple genera in 447329007 |Subfamily Psittacinae (organism)|. To avoid ambiguity, a grouper concept referring to high-level taxon should be created.
  • For example, In the Substance hierarchy, a grouper concept, 1149419004 |Psittacidae protein (substance)|, was created as a parent concept to the following two concepts:
    • 146711000146102 |Parakeet protein (substance)|
    • 146701000146104 |Parrot protein (substance)|

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